What is difference between VCB and SF6 breaker

Answer Posted / guna

VCB - Vacuum circuit breaker, which is used at HT side of
transformer(High voltage & low current side). the arc
quenching medium is vacuum.

SF6 - sulfur hexafluoride circuit breaker, which is used at
both HT & LT side of transformer..the arc quenching medium is
SF.

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